A dataset provided by the European Space Agency

Name 074437
Title Constraining X-ray Absorption in Emergent BAL Quasars


DOI https://doi.org/10.5270/esa-v1l70e0
Author Dr Paola Rodriguez Hidalgo
Description Quasar outflows are important for their feedback on galaxy evolution and black hole growth. These outflows are observed as broad UV absorption lines (BALs) in quasars, reaching velocities >0.1c. In radiative acceleration models, UV-absorbing gas must be shielded by X-ray absorbing gas to reach such velocities and, typically, BAL quasars are indeed X-ray-weaker than non-BAL quasars. However, recent observations are shaking our understanding on how the X-ray and UV absorbers are connected. We propose to re-observe with XMM-Newton three zvirgul2 quasars that did not display UV absorption at the time of the first XMM-Newton observations, but that have recently developed new BAL troughs. These observations will allow us to constrain, for the first time, the X-ray-UV connection on newly emerged BALs.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-11-08T14:59:05Z/2015-05-01T17:39:40Z
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2016-05-20T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016-05-20T22:00:00Z, 074437, PPS_NOT_AVAILABLE. https://doi.org/10.5270/esa-v1l70e0